Technical docs

System Architecture

High-level overview of Acctally's system design.

System Overview

Acctally is a monolithic Go backend with clear service boundaries, fronted by a Next.js web app. All services run in Docker containers.

Core Ports

  • 3000 - Frontend (Next.js)
  • 8081 - Envoy gRPC-Web
  • 8080 - REST Gateway
  • 50052 - gRPC Server

Infrastructure

  • 5432 - PostgreSQL
  • 6379 - Redis
  • 3001 - Grafana
  • 3100 - Loki

Multi-Tenancy Model

Data isolation happens at the Workspace level. Organizations handle billing and team management.

Hierarchy

  • User - Global account. Can belong to multiple organizations.
  • Organization - Billing entity with subscription tier.
  • Workspace - Data container. All financial data is isolated here via tenant_id.

Technology Stack

Frontend

  • Next.js 16 (App Router)
  • TypeScript
  • Tailwind CSS v4
  • shadcn/ui components
  • React Query (TanStack)
  • Connect-RPC (gRPC-Web)

Backend

  • Go 1.22
  • gRPC + Protobuf
  • GORM (PostgreSQL ORM)
  • go-redis
  • Uber fx (dependency injection)

Infrastructure

  • Docker + Docker Compose
  • PostgreSQL 15
  • Redis 7
  • Envoy Proxy
  • Grafana + Loki

Integrations

  • Paystack (payments)
  • Stripe (payments)
  • SparkPost (email)
  • Slack (notifications)
  • OpenAI (AI features)

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